ArticleAging clinical and experimental research2023
Validity and reliability of Eforto®, a system to (self-)monitor grip strength and muscle fatigability in older persons.
Article in Aging clinical and experimental research, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.
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Who cites it
12 citing papers in PubMed, 2 syntheses or guidelines pooled it, 13 citations in OpenAlex.
- Instruments for measuring the neuromuscular function domain of vitality capacity in older persons: an umbrella review.European geriatric medicine · 2024Pooled it
- Measurement properties of instruments to measure the fatigue domain of vitality capacity in community-dwelling older people: an umbrella review of systematic reviews and meta-analysis.Age and ageing · 2023Pooled it
- Providing insight in resilience and recovery by using fatigability and its development over time in older adults after hip fracture surgery.European geriatric medicine · 2026Article
- Article
- Handgrip strength testing in rheumatic diseases.Rheumatology international · 2026Review
- The feasibility of a set of physical resilience measurements in older patients admitted to the acute medical unit.BMC geriatrics · 2025Article
- Understanding hand grip measures in geriatric inpatients: associations with frailty, daily functioning and fatigue.Aging clinical and experimental research · 2025Article
- Limited association between multimorbidity and high-sensitive C-reactive protein or gait speed in community-dwelling octogenarians - findings from the BUTTERFLY study.The journal of nutrition, health & aging · 2025Article
- Preoperative physical resilience indicators and their associations with postoperative outcomes.GeroScience · 2025Article
- Article
- Feasibility of hand grip tests during and after hospitalization in geriatric patients: an observational study.BMC geriatrics · 2024Observational
- Association between Muscle Fatigability, Self-Perceived Fatigue and C-Reactive Protein at Admission in Hospitalized Geriatric Patients.International journal of environmental research and public health · 2023Article
Corrections and comments
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Authors and funding
13 authors at 4 institutions in 3 countries.
Funding
Abstract
introductionWe developed Eforto®, an innovative system for (self-)monitoring of grip strength (GS) and muscle fatigability (Fatigue Resistance (FR = time until GS decreased to 50% of maximum during sustained contraction) and grip work (GW = area under the strength-time curve)). The Eforto® system consists of a rubber bulb that is wirelessly connected to a smartphone-based application, and a telemonitoring platform. The aim was to evaluate the validity and reliability of Eforto® to measure muscle fatigability.
methodsCommunity-dwelling older persons (n = 61), geriatric inpatients (n = 26) and hip fracture patients (n = 25) were evaluated for GS and muscle fatigability. In community dwellers fatigability was tested twice in the clinic (once with Eforto®, once with Martin Vigorimeter (MV), standard analog handgrip system) and for six consecutive days as a self-assessment at home with Eforto®. In hospitalized participants, fatigability was tested twice using Eforto®, once by a researcher and once by a health professional.
resultsCriterion validity was supported by good to excellent correlations between Eforto® and MV for GS (r = 0.95) and muscle fatigability (FR r = 0.81 and GW r = 0.73), and no significant differences in measurements between both systems. Inter-rater and intra-rater reliability for GW were moderate to excellent (intra-class correlation: 0.59-0.94). The standard error of measurement for GW was small for geriatric inpatients and hip fracture patients (224.5 and 386.5 kPa*s) and higher for community-dwellers (661.5 kPa*s). DISCUSSION/
conclusionWe established the criterion validity and reliability of Eforto® in older community-dwelling persons and hospitalized patients, supporting the implementation of Eforto® for (self-)monitoring of muscle fatigability.
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